NEED HELP ? - Call : +44 (0)1245 428500 or email :
OFFICE HOURS : 9:00am - 5:30pm GMT/BST Monday to Friday

More Views

Thiim BRIA DC Ripple Relay for Thyristors


  • One unit for all voltages from 18…340Vdc
  • 4 voltage sub-ranges for high accuracy
  • High sensitivity. Adjustable from 0.4…6.4%
  • 3 ripple sensitivity ranges for an easy adjustment
  • Excellent accuracy and equal sensitivity for ripple frequencies from 30…3000Hz.
  • No separate supply power needed
  • Time delay - ON and OFF - individually adjustable
  • Compact. 35mm box with 2 C/O contacts


The ripple relay BRIA is developed to supervise thyristor rectifiers for faulty thyristors. The relay is extremely sensitive, stable and detects with high accuracy ripple levels exceeding the set sensitivity in the frequency range from 30 to 3000Hz.. Supply power is taken from the input, and by using a wide range switchmode supply, the same relay can be used in systems with voltages from 18 to 340Vdc. In order to have the same precision for all system voltages, the range 18 to 340Vdc is divided into 4 overlapping subranges, selected by two DIP-switches. By use of another DIP-switch, the sensitivity range can be set from 0.4 to 1.6%, 0.8 to 3.2% or 1.6 to 6.4% of the system voltage.

Supervision of DC Power supplies in general or battery chargers in UPS systems.

Additional Information

Manufacturer Thiim
Product Name / Options Price (ex VAT)
Thiim BRIA-1834-DA3C DC Ripple Relay Rail Mounting 35mm - 40094 Call for Prices

Thiim BRIA-1834-DE3C DC Ripple Relay Socket Mounting 35mm - 43012 Call for Prices